src/libstd/build.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 extern crate gcc;
  12 extern crate build_helper;
  13
  14 use std::env;
  15 use std::fs;
  16 use std::path::PathBuf;
  17 use std::process::Command;
  18
  19 use build_helper::run;
  20
  21 fn main() {
  22     println!("cargo:rustc-cfg=cargobuild");
  23
  24     let target = env::var("TARGET").unwrap();
  25     let host = env::var("HOST").unwrap();
  26     if !target.contains("apple") && !target.contains("msvc") {
  27         build_libbacktrace(&host, &target);
  28     }
  29
  30     if target.contains("unknown-linux") {
  31         if target.contains("musl") {
  32             println!("cargo:rustc-link-lib=static=unwind");
  33         } else {
  34             println!("cargo:rustc-link-lib=dl");
  35             println!("cargo:rustc-link-lib=rt");
  36             println!("cargo:rustc-link-lib=pthread");
  37             println!("cargo:rustc-link-lib=gcc_s");
  38         }
  39     } else if target.contains("android") {
  40         println!("cargo:rustc-link-lib=dl");
  41         println!("cargo:rustc-link-lib=log");
  42         println!("cargo:rustc-link-lib=gcc");
  43     } else if target.contains("freebsd") {
  44         println!("cargo:rustc-link-lib=execinfo");
  45         println!("cargo:rustc-link-lib=pthread");
  46         println!("cargo:rustc-link-lib=gcc_s");
  47     } else if target.contains("dragonfly") || target.contains("bitrig") ||
  48               target.contains("netbsd") || target.contains("openbsd") {
  49         println!("cargo:rustc-link-lib=pthread");
  50
  51         if target.contains("rumprun") {
  52             println!("cargo:rustc-link-lib=unwind");
  53         } else if target.contains("netbsd") || target.contains("openbsd") {
  54             println!("cargo:rustc-link-lib=gcc");
  55         } else if target.contains("bitrig") {
  56             println!("cargo:rustc-link-lib=c++abi");
  57         } else if target.contains("dragonfly") {
  58             println!("cargo:rustc-link-lib=gcc_pic");
  59         }
  60     } else if target.contains("apple-darwin") {
  61         println!("cargo:rustc-link-lib=System");
  62     } else if target.contains("apple-ios") {
  63         println!("cargo:rustc-link-lib=System");
  64         println!("cargo:rustc-link-lib=objc");
  65         println!("cargo:rustc-link-lib=framework=Security");
  66         println!("cargo:rustc-link-lib=framework=Foundation");
  67     } else if target.contains("windows") {
  68         if target.contains("windows-gnu") {
  69             println!("cargo:rustc-link-lib=gcc_eh");
  70         }
  71         println!("cargo:rustc-link-lib=advapi32");
  72         println!("cargo:rustc-link-lib=ws2_32");
  73         println!("cargo:rustc-link-lib=userenv");
  74         println!("cargo:rustc-link-lib=shell32");
  75     }
  76 }
  77
  78 fn build_libbacktrace(host: &str, target: &str) {
  79     let src_dir = env::current_dir().unwrap().join("../libbacktrace");
  80     let build_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
  81
  82     println!("cargo:rustc-link-lib=static=backtrace");
  83     println!("cargo:rustc-link-search=native={}/.libs", build_dir.display());
  84
  85     if fs::metadata(&build_dir.join(".libs/libbacktrace.a")).is_ok() {
  86         return
  87     }
  88
  89     let compiler = gcc::Config::new().get_compiler();
  90     let ar = build_helper::cc2ar(compiler.path(), target);
  91     let cflags = compiler.args().iter().map(|s| s.to_str().unwrap())
  92                          .collect::<Vec<_>>().join(" ");
  93     run(Command::new("sh")
  94                 .current_dir(&build_dir)
  95                 .arg(src_dir.join("configure").to_str().unwrap()
  96                             .replace("C:\\", "/c/")
  97                             .replace("\\", "/"))
  98                 .arg("--with-pic")
  99                 .arg("--disable-multilib")
 100                 .arg("--disable-shared")
 101                 .arg("--disable-host-shared")
 102                 .arg(format!("--host={}", build_helper::gnu_target(target)))
 103                 .arg(format!("--build={}", build_helper::gnu_target(host)))
 104                 .env("CC", compiler.path())
 105                 .env("AR", &ar)
 106                 .env("RANLIB", format!("{} s", ar.display()))
 107                 .env("CFLAGS", cflags));
 108     run(Command::new("make")
 109                 .current_dir(&build_dir)
 110                 .arg(format!("INCDIR={}", src_dir.display()))
 111                 .arg("-j").arg(env::var("NUM_JOBS").unwrap()));
 112 }